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Truth Teller and Liar Puzzles Worksheet

Logical reasoning lesson 24: Truth-tellers and liars · Set 37 · 40 questions
TalentJR

How to think it through (Suppose and check): Suppose the first speaker is a truth-teller: their words are true. Work out what that says about the others. Check every statement. A truth-teller’s words must be true; a liar’s words must be false. If you hit a clash, switch the supposition. The possibility with no clash is the answer.

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  1. 1.Each person always tells the truth or always lies. Pooja says: “Rohan is a liar.” Rohan says: “At least one of us two, Isha or I, is a liar.” Isha says: “Rohan is a liar.” Is Rohan a truth-teller or a liar? (a) truth-teller (b) liar
  2. 2.Each person always tells the truth or always lies. Kavya says: “Manav and I both tell the truth.” Neel says: “Manav is a liar.” Manav says: “Kavya and I are the same kind.” Is Neel a truth-teller or a liar? (a) truth-teller (b) liar
  3. 3.Each person always tells the truth or always lies. Dev says: “Kabir and I are the same kind.” Kabir says: “Dev and I both tell the truth.” Is Dev a truth-teller or a liar? (a) truth-teller (b) liar
  4. 4.Each person always tells the truth or always lies. Aarav says: “At least one of us two, Rahul or I, is a liar.” Rahul says: “Aarav and I both tell the truth.” Is Aarav a truth-teller or a liar? (a) truth-teller (b) liar
  5. 5.Each person always tells the truth or always lies. Aditya says: “Ananya tells the truth.” Ananya says: “Aditya and I are the same kind.” Neel says: “Aditya tells the truth.” Is Aditya a truth-teller or a liar? (a) truth-teller (b) liar
  6. 6.Each person always tells the truth or always lies. Dev says: “Rohan and I are different kinds.” Rohan says: “Dev and I are different kinds.” Is Dev a truth-teller or a liar? (a) truth-teller (b) liar
  7. 7.Each person always tells the truth or always lies. Manav says: “At least one of us two, Siddharth or I, is a liar.” Siddharth says: “Ananya and I are the same kind.” Ananya says: “At least one of us two, Siddharth or I, is a liar.” Is Siddharth a truth-teller or a liar? (a) truth-teller (b) liar
  8. 8.Each person always tells the truth or always lies. Ishaan says: “Myra is a liar.” Myra says: “Ishaan and I are different kinds.” Is Ishaan a truth-teller or a liar? (a) truth-teller (b) liar
  9. 9.Each person always tells the truth or always lies. Priya says: “Karan and I are the same kind.” Karan says: “Priya is a liar.” Is Priya a truth-teller or a liar? (a) truth-teller (b) liar
  10. 10.Each person always tells the truth or always lies. Ishaan says: “Ira and I are different kinds.” Ananya says: “Ishaan and I are different kinds.” Ira says: “Ananya and I are the same kind.” Is Ishaan a truth-teller or a liar? (a) truth-teller (b) liar
  11. 11.Each person always tells the truth or always lies. Kabir says: “Meera and I are the same kind.” Meera says: “Kabir and I are the same kind.” Is Kabir a truth-teller or a liar? (a) truth-teller (b) liar
  12. 12.Each person always tells the truth or always lies. Zoya says: “Aditya and I both tell the truth.” Aditya says: “Zoya is a liar.” Is Zoya a truth-teller or a liar? (a) truth-teller (b) liar
  13. 13.Each person always tells the truth or always lies. Kavya says: “Myra and I both tell the truth.” Myra says: “Kavya is a liar.” Is Kavya a truth-teller or a liar? (a) truth-teller (b) liar
  14. 14.Each person always tells the truth or always lies. Karan says: “Siddharth and I are different kinds.” Siddharth says: “Karan tells the truth.” Is Siddharth a truth-teller or a liar? (a) truth-teller (b) liar
  15. 15.Each person always tells the truth or always lies. Siddharth says: “At least one of us two, Saanvi or I, is a liar.” Priya says: “At least one of us two, Saanvi or I, is a liar.” Saanvi says: “Siddharth and I both tell the truth.” Is Siddharth a truth-teller or a liar? (a) truth-teller (b) liar
  16. 16.Each person always tells the truth or always lies. Isha says: “Dev and I are the same kind.” Dev says: “Isha tells the truth.” Is Isha a truth-teller or a liar? (a) truth-teller (b) liar
  17. 17.Each person always tells the truth or always lies. Siddharth says: “Diya is a liar.” Diya says: “At least one of us two, Siddharth or I, is a liar.” Is Siddharth a truth-teller or a liar? (a) truth-teller (b) liar
  18. 18.Each person always tells the truth or always lies. Kavya says: “Sneha and I both tell the truth.” Yash says: “At least one of us two, Sneha or I, is a liar.” Sneha says: “Yash and I both tell the truth.” Is Yash a truth-teller or a liar? (a) truth-teller (b) liar
  19. 19.Each person always tells the truth or always lies. Rohan says: “Vivaan and I both tell the truth.” Vivaan says: “Rohan and I are the same kind.” Is Rohan a truth-teller or a liar? (a) truth-teller (b) liar
  20. 20.Each person always tells the truth or always lies. Ananya says: “Dev and I are the same kind.” Dev says: “At least one of us two, Ananya or I, is a liar.” Is Ananya a truth-teller or a liar? (a) truth-teller (b) liar
  21. 21.Each person always tells the truth or always lies. Tara says: “Saanvi is a liar.” Siddharth says: “Tara and I are different kinds.” Saanvi says: “Siddharth and I both tell the truth.” Is Siddharth a truth-teller or a liar? (a) truth-teller (b) liar
  22. 22.Each person always tells the truth or always lies. Karan says: “Kabir and I are the same kind.” Kabir says: “Karan and I are the same kind.” Is Kabir a truth-teller or a liar? (a) truth-teller (b) liar
  23. 23.Each person always tells the truth or always lies. Ishaan says: “Neel is a liar.” Neel says: “At least one of us two, Ishaan or I, is a liar.” Is Ishaan a truth-teller or a liar? (a) truth-teller (b) liar
  24. 24.Each person always tells the truth or always lies. Diya says: “Sneha is a liar.” Sneha says: “Diya and I are the same kind.” Is Diya a truth-teller or a liar? (a) truth-teller (b) liar
  25. 25.Each person always tells the truth or always lies. Aisha says: “Kavya tells the truth.” Kavya says: “Meera and I are the same kind.” Meera says: “Aisha and I both tell the truth.” Is Aisha a truth-teller or a liar? (a) truth-teller (b) liar
  26. 26.Each person always tells the truth or always lies. Myra says: “Arjun tells the truth.” Arjun says: “Myra and I are the same kind.” Is Arjun a truth-teller or a liar? (a) truth-teller (b) liar
  27. 27.Each person always tells the truth or always lies. Rohan says: “At least one of us two, Dev or I, is a liar.” Dev says: “Rohan and I are the same kind.” Kavya says: “Rohan is a liar.” Is Rohan a truth-teller or a liar? (a) truth-teller (b) liar
  28. 28.Each person always tells the truth or always lies. Isha says: “Dev and I are the same kind.” Dev says: “Isha and I are different kinds.” Is Isha a truth-teller or a liar? (a) truth-teller (b) liar
  29. 29.Each person always tells the truth or always lies. Ira says: “Sneha is a liar.” Sneha says: “Ira and I are different kinds.” Is Sneha a truth-teller or a liar? (a) truth-teller (b) liar
  30. 30.Each person always tells the truth or always lies. Nisha says: “At least one of us two, Sneha or I, is a liar.” Sneha says: “Nisha and I are the same kind.” Is Nisha a truth-teller or a liar? (a) truth-teller (b) liar
  31. 31.Each person always tells the truth or always lies. Aditya says: “Aisha is a liar.” Aisha says: “At least one of us two, Aditya or I, is a liar.” Is Aditya a truth-teller or a liar? (a) truth-teller (b) liar
  32. 32.Each person always tells the truth or always lies. Rohan says: “Aisha and I are different kinds.” Aisha says: “Ira tells the truth.” Ira says: “Rohan is a liar.” Is Ira a truth-teller or a liar? (a) truth-teller (b) liar
  33. 33.Each person always tells the truth or always lies. Kavya says: “Nisha and I are different kinds.” Nisha says: “Kavya tells the truth.” Is Kavya a truth-teller or a liar? (a) truth-teller (b) liar
  34. 34.Each person always tells the truth or always lies. Ishaan says: “Aisha and I are different kinds.” Aisha says: “Ishaan and I are different kinds.” Is Ishaan a truth-teller or a liar? (a) truth-teller (b) liar
  35. 35.Each person always tells the truth or always lies. Meera says: “Zoya and I are different kinds.” Zoya says: “Meera tells the truth.” Is Zoya a truth-teller or a liar? (a) truth-teller (b) liar
  36. 36.Each person always tells the truth or always lies. Myra says: “Manav is a liar.” Manav says: “Myra and I are the same kind.” Karan says: “Manav and I both tell the truth.” Is Myra a truth-teller or a liar? (a) truth-teller (b) liar
  37. 37.Each person always tells the truth or always lies. Ishaan says: “Ananya and I are the same kind.” Omkar says: “At least one of us two, Ishaan or I, is a liar.” Ananya says: “Ishaan and I are different kinds.” Is Omkar a truth-teller or a liar? (a) truth-teller (b) liar
  38. 38.Each person always tells the truth or always lies. Rohan says: “Vivaan is a liar.” Vivaan says: “Rohan and I are the same kind.” Is Vivaan a truth-teller or a liar? (a) truth-teller (b) liar
  39. 39.Each person always tells the truth or always lies. Kavya says: “Aisha is a liar.” Aisha says: “At least one of us two, Kavya or I, is a liar.” Is Kavya a truth-teller or a liar? (a) truth-teller (b) liar
  40. 40.Each person always tells the truth or always lies. Myra says: “Ira tells the truth.” Ira says: “Dev and I are different kinds.” Dev says: “Ira and I are the same kind.” Is Myra a truth-teller or a liar? (a) truth-teller (b) liar

Answer key

  1. truth-teller
  2. liar
  3. truth-teller
  4. truth-teller
  5. truth-teller
  6. liar
  7. liar
  8. liar
  9. liar
  10. liar
  11. truth-teller
  12. liar
  13. liar
  14. liar
  15. truth-teller
  16. truth-teller
  17. liar
  18. truth-teller
  19. truth-teller
  20. liar
  21. truth-teller
  22. truth-teller
  23. liar
  24. truth-teller
  25. truth-teller
  26. truth-teller
  27. truth-teller
  28. liar
  29. truth-teller
  30. truth-teller
  31. liar
  32. liar
  33. liar
  34. liar
  35. liar
  36. truth-teller
  37. truth-teller
  38. liar
  39. liar
  40. truth-teller

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